I recently upgraded the mobo on my PC, one of the new features I'm excited about is the USB 3.1 type c port on the front. Once I tried to connect my Pixel to the usb port, nothing happened. I tried reinstalling drivers but that didn't help; today I decided to connect my Nexus 6P to the USB C port, and sure enough it start charging after a few seconds. Not only was it charging, it was fast charging which tells me it's not a power delivery issue with the port. I checked the power adapters that came with both phones both output 5V 3A DC. The really weird thing is the usb c port on my laptop works absolutely fine with the pixel 2 XL, I'm not sure what to do.